4 years ago

4 ( 5x - 5) = 0 solve it i got 20x-20=0 i just need the rest

Mathematics

2 answers:

shepuryov [24]4 years ago

8 0

I'm pretty sure 5x -5 is 0 and 4x0 is 0

valkas [14]4 years ago

5 0

Add 20 to both sides of the equal sign. this will turn it into 20x=20. then you divide both sides of the equal sign by the number with the exponent (x, y etc) so it would be 20/20 x=1

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number 3 says,"If u and v are the measures of complementary angles such that sin u =2/5 and tan v =(square root of 21) 21/2, lab

vodomira [7]

Answer and Explanation:

Using trig ratios, we can express the given values of sin u and tan v as shown below

$\begin{gathered} \sin u=\frac{opposite\text{ of angle u}}{\text{hypotenuse}}=\frac{2}{5} \\ \tan v=\frac{opposite\text{ of angle v}}{\text{hypotenuse}}=\sqrt[]{21} \end{gathered}$

So we can go ahead and label the sides of the triangle as shown below;

We can find the value of u as shown below;